Dear all,

I have run RegCM4.0 with the same regcm.in file, which is attached in this email, for 8 years. Even though there was no problem with the years 2001, 2002, 2003, 2004, 2005, 2006, 2007 when I ran it for the year 2000, I saw the message below at the terminal:

70E-05 0.42932E-07,  no. of points w/convection =    1137
            *** solar declination angle =  19.60 degrees.
  dectim =    486720.00000000000    
 OUT-history written date =    2000072406.0000000    
 LAND variables written at   2000072406   0.0000000000000000    
 Writing rad fields at ktau =       121320  2000072406
 BCs are ready from   2000072406   to   2000072412
 WHUUUUBBBASAAAGASDDWD!!!!!!!!!!!!!!!!
 No more atmosphere here....
 CFL violation detected, so model STOP
 #####################################
 #            DECREASE DT !!!!       #
 #####################################
  -------------- FATAL CALLED ---------------
  Fatal in file: tend.F90 at line:   2280
  CFL VIOLATION
  -------------------------------------------
Aborted

How is this explained? The only things I changed each time were the ICBCs and the year in the regcm.in file.

Irini